Spraying apparatus



y 1952 E TORGERSON SPRAYING APPARATUS 5 Sheets-Sheet 1 Filed May 19. 1949 l H LHIL I 'jrye 7'50 72 5 Sheetg-Sheet 2 M a? i Q1 Zarifyerson V Ni E. TORGERSON SPRAYING APPARATUS July 29, 1952 Filed May 19. 1949 V M ME I E. TORGERSON July 29, 1952 SPRAYING APPARATUS '3 Sheets-Sheet 3 Filed May 19. 1949 ZarZ 7 077967 8071,

Patented July 29, 1952 UNITED STATE s PTENT ()FFI Ei.

SPRAYING APPARATUS Earl Torgerson, Minneota, Minn. 7 Application May 19, 1949, Serial No. 94,152

6 Claims. (01. 299-30) I This invention relates in'general to spraying apparatus used on vegetation, and is adaptable for mounting on a farm vehicle, such as a tractor.

The object of this invention is to construct a simple supporting frame adaptable for mounting on the front of a vehicle, such as a farm tractor, for supporting a pair of sprayer booms one on each side of the frame, the inner ends of the booms being pivotally mounted for swinging the booms back to a trailing position alongside the vehicle if their outer ends are dropped to the ground as the vehicle moves forward, and means on said frame for normally adjustably supporting the outer ends of the booms at any height off the ground laterally of the frame, while permitting them to swing back if they meet with any obstructions.

Another object is to construct the frame defined above from readily available beam and pipe material usually found on a farm and to adjustably support the inner endsrof the booms at any desired height above the ground within the limits of the frame.-

It is a further object of the invention to provide a spraying attachment for tractors and the like having a pair of laterally extending booms, wherein each'boom is capable of independent height adjustment-with relation to the ground while at the same time, regardless of its height from the ground, it may be maintained substari tiallyparallel to the ground surface, thus providing for crops of different heights planted on substantially level ground.

Still another object of the invention is the pro; vision of a spraying attachment havingv a pair 6: booms so constructed as to provide a substantially unbroken and continuous spray feeding conduit, while at the same time requiring only two base connections, one for each boom, and permitting the boom to sway rearwardly when hit by an obstruction.

Other and more specific objects will become apparent in the following detailed description of some preferred forms of supporting frames con: structed in accordance with the present inven tion, having reference to the accompanying drawings, wherein:

Fig. 1 is a perspective view of the apparatus mounted on the front end of a farm tractor.

Fig. 2 is a partial front view of the same: showing the booms suspended in normally laterally extended position.

Fig. 3 is a side elevation of the apparatus.

' Fig. 4 is a detail partial view of the pivotal connection of one of the booms to the supporting frame.

Fig. 5 is a similar view with the boom disconnected.

Figs. 6 and. 7 show modified forms of the bumper portion of the frame which acts as a p for the inner ends of thebooms in their laterally extended positions.

The 'main portion of the supporting frame comprises two substantially vertical tubular members In and H, such as standard one inch pipes, held together by'cross members I2 and I3 at the top and bottom respectively, which members may be L-sectioned "steel beams, one'and one half inches at the top and two inches at the bottom. The top beam l2'has end portions l4 and l5' extending beyond the vertical members it and H. These portions are bent forward and are braced by brackets l6 at the corners of-the bends. i e

This main portion of the frame. isshown mounted on the front of the farm tractor [1 by means of a pair of beams orrods l8- and 19pxtending from .the sides of the tractor frame to the lower beam l3, another pair of rods 20 ]and 2| similarly extending to the top. beam I2, and a pair of crossed diagonal rods 22 and 23 ,ex-

tending from the front of the tractor frame to the upper beam [2.

Each vertical member l0 and H has a short piece of one and one quarter inch pipe 24"telescopically mounted thereon for slidable adjustment by means of a stop collar 25 which may be fixed at ny height on the verticalmember by means of a set'screw'26, to adjustably support the inner ends of the "spray'booms 21 and=28. Each boom has a T fitting'29 nea'r'its inner end, with a nipple 30 connected thereto. Each piece 24 has another short piece-of one and onequarter inch pipe 3| welded thereto at right angles as shown, through which the nipple; 30' ispassed beforeattachi'ng a hose-connection 32 tothe other end of the nipple, forconnectiontoasupply of the spray material under pressure, such as the pump 33.

This pump may be driven' by a belt 34 from a drive pulley 35 operated by the tractor engine. The pump illustrated-has two inlets 36 and 31 and'two'outlets controlled by valves 38 and 39 connected to the delivery -hose 40 and 4!, which have hose'connections '32 for tank 42 hauled tractor.

- Thus,- the'spray connection to the'nipples 30 of the spraysbooms 21 and 28. The spray fluid may be carriedin a in a cart or wagon 43 behind the booms, which are provided with nozzles 4t distributed along their. lengths,

are pivotally supported at their. inner ends in the portions 3| of the vertically adjustable pipe pieces 24. At their outer ends the booms are supported by chains 45 and 46 fastened to the extreme ends of the upper beam. These extreme 'ends,-being forward and outward of the pivotal su port pieces 24 and 3|, tend to swing the outer ends of the spray booms outwardly and forwardly to a laterally extending position,and-the inner ends of the booms strike the bumper plate 41 which is mounted on thelower beam 13,,thus

been may be inde endently angled to-a' pipe 50, the open end of which is fixed to the bumper plate 41 and the closed end braced by pipe to the u per beam l2. Alternatively,'the bum er plate 41 may be used by -itsel'f as shown in Fig. 6, or it may be omitted and the bumper bars may be used by themselves; formed simply by an ovally bent pipe 52, as shown in Fig. '7'.

If the bumper plate 41 is used by itself, the

1' vertically adjustable pivots 24-3L should not be moved up to a position such thatlthe innerend V dime-corresponding boonr 'would 'be moved out o-L themange of-"the'bu-mper plate-,but if the *bumperbars' :showndnaFig; 2 or- Fig; 7:. are used I these" adjustable pivots may be 'moved' to any l'ieight, 'as lon-g as the inner ends of thebooms stay within the range oti the" bumper bars.

'The' outefends of the spray'boomsmay' be "fai'sdto any height by hooking the hook 5 3': intoa'i-l'ychain link M above" it, so as to shorten the length ofthe chain'sun'portifigthe boom; Each iist for sloping ground, such as when the sprayf-vhicle is; follbwing the contours pr; a hill; Each boom may" also bain'dependently levelled at-ar'i-y 'desif'ed height by moving the sleeves 24' along the p st 1r aiidfixine, them by means of the set height-s1 This" J's-a hi hiy significant feature of the invention herein described intnatth'e booms are ofv reat lengthand; wheri exterided. cover a a considerablea ountofi ground. It is well known that he ahts' of the-same crop vary according to" spot "soil; draina e and shade condi'tions and al rr-thatj strip: farming is?oui-te--eommon1-with diffie ent types of crons- -being *planted in immediatelv,ad acent-strips: 7

r r Thejsbravbooms-m'ay thus be adjusted faccommodate-anyrows of-ye etationas well as to"clearborderinsf fences andthelike, when-necssary. .T'nany adjustment; however, the-booms are" fsilienftl-yh'eld in a laterally extended positiii'l so as to ive' ay 15y swinging baokwafdly in ase' ari tion is n ss'e'd, the" boom 'automatically swings bstruction" i hit. Whn the Obstrucii outward by 'reasori o'f'-the""eccentric fis'ioli. q The rhain fr'ame is made wide enough that tl'i 'cliai'i'i susfieiisionshould break or accidentally 'ais eonhect; the" "corresponding 'boomwill tiilil-"ildiii the-tractor 'c'lear" 'Of the side wheels, and-will be damaged byswinging'into the he s,

obvious' rfiodifications may be made in form and arrangement of the several parts of apparatus without smart-mg from tl i'' spirit ascribe ofthis invention, as defind'in the the '- appende claims. I

What is claimed is:

ll-Farm sprayin apparatus comprising-asunportmg frame-adaptable forrhoiinting en a ve- "hic'i, said frame" having vertical =sid iriifibers with horizontal" bearings 'sl'i dably and rdtatably iinte'dthereon," a spray boom pivotally mount- "e'fd each bearing by'ineans' of a p'ivot; element exthdiiigfinfa' direction normal to saidboom from a pointfspjaced-from its'innerend ea'ch said pivot element having a -fiuid passage associated therewith for supplying a spray fluid to the boom from a connected flexible conduit, and means for adjustably suspending the outer end of each boom from a point forwardly and outwardly of the upper end of eachverticali' side'zmember so as to normally and separately bias each boom to 1 an extended lateral position but permitting it to swing backwardly when met by an obstruction. 2; Farm spraying apparatus as defined in claim 1, land bumper-means for the inner ends of said booms located centrally of the frame for stopping said booms in a laterally extended positionas they are biased in that direction by said suspending means but permitting them to swing 15 rearwardly when met by an obstruction.

31' Farm" spraying apparatus as set forth in ela'im'z wherein s'aid'humper'means-extends vertica-ll y for" substantially the" greater" portion of the length of the vertical side members-tapermi-t maximum vertical adjustment or thespray 4 Farm spraying apparatus as 'fdefinedin 7 claim I, wherein saidboompi'vot comprises a pi e nipple connectedto a""T in said boomi' and a hose conneetion for-supplying spraying mate- "rial to the other-.end'-of said nipple.

' screw, 26. 'On level ground the s rayer will" thus be ad'i'u'stablet'joad acent 'crnns' ofdifferentporting frame adaptable for mounting on a vehicle, a pai'rof spray boo'mspivotally attached to s'aid'fr'ame at apoint -intermediate theends of each boom so as to permit-the booms to swing rearwardly" and parallel toth'e' vehicle body, the

inner ends of saidboomsmeeting at substantially the mid' point of said-suppOrti'ngframe so as to form of the two boomsa substantially continuous spray element, means for admittingliquid spray to each boom throughpivot' points, means to normallybias said "booms in a-position laterally of' the vehicle body; andbumper means on said frame meeting the inner" ends of said booms to stop them in '-a-laterallyextended position while permitting them to swing rearwardl ywhen meeting an obstruction.

'roa'enason.

REFERENCES; CITED The following references are 'of'record in the file of this patent:

' UNITED STATES PATENTS Number Name -i Date 604,479 Nichol May'l2 4, 1898 648,414 -Kenison 1; May'lflQOO 1,539,789 -W alker May 26,1925 2,152,407 Fawley 4 Mar; 28,1939 2,221,433 Pitner 'Nov.'12,1940 2,273,344 Blacket a1. Feb. 17, 1942 "2,305,913 Troyer ='Dec. 22, 1942 2,539,288 Van Horn Jan; 23,1951

' r FOREIGN PATENTS Number Country .JDate 491,902 France Febi 20; 1919 781039 @I'rance. .;i:Feb. 18;:1935 

